______ is believed that morning exercise is one of the best ways for a person to keep fit.
Mid Autumn Day of this year falls onSaturday.
I really appreciate their ________ you ________ after me while I was ill.
—In my opinion, he is a hardworking man. —________. He is always the first to come and the last to leave.
Since a sharp fall of stockmarket (股市) many people have ________ making other investments (投资).
Some students use their cellphone ________ as a tool of entertainment.